2.5 Carat Radiant Natural Diamond Prices Comparison
As of April 2026, 2.5 carat radiant natural diamonds usually range from $1,173 to $51,791, with an average price of $25,862.In the last month, prices for these diamonds are down 0.1%.Compare 209 verified listings across 7 retailers tracked by CaratRadar.
2.5 Carat Radiant Natural Diamond Market Overview
CaratRadar currently tracks 209 verified 2.5-carat radiant natural diamonds listed across 7 online retailers. Prices in this segment range from $1,173 to $51,791, with an average asking price of $25,862 and a median of $25,668.
The price spread of $50,618 (97.7% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
209 diamonds tracked in this segment
Price range: $1,173 to $51,791
Average price: $25,862
Median price: $25,668
Available across 7 retailers
Savings potential: up to 97.7%
Price Range Overview
As of Apr 14, 2026Real market range for this carat, shape, and diamond type.
209
$1,173
$25,862
$25,668
$51,791
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
Save 19.5%GIA | 2.5ct | Radiant | D | SI2 | Excellent
From $22,095
Compare at $27,440
GIA | 2.5ct | Radiant | E | VS1 | Ideal
From $37,168
Compare at $37,315
GIA | 2.5ct | Radiant | E | SI2 | Excellent
From $25,920
Compare at $27,855
GIA | 2.5ct | Radiant | G | VS2 | Excellent
From $32,736
Compare at $34,093
Save 29%GIA | 2.5ct | Radiant | H | SI1 | Excellent
From $21,565
Compare at $30,376
Save 23.3%GIA | 2.5ct | Radiant | J | VVS1 | Excellent
From $17,851
Compare at $23,267
Save 19.9%GIA | 2.5ct | Radiant | I | VS2 | Ideal
From $16,841
Compare at $21,024
Save 19.1%GIA | 2.5ct | Radiant | H | SI2 | Excellent
From $19,731
Compare at $24,388
GIA | 2.5ct | Radiant | G | SI1 | Excellent
From $18,353
Compare at $20,148
Save 28.4%GIA | 2.5ct | Radiant | I | SI2 | Excellent
From $12,642
Compare at $17,645
Save 24.7%GIA | 2.5ct | Radiant | D | VS2 | Excellent
From $31,155
Compare at $41,400
Save 13.7%GIA | 2.5ct | Radiant | F | VS2 | Excellent
From $30,504
Compare at $35,331
GIA | 2.5ct | Radiant | I | VS2 | Excellent
From $23,040
Compare at $26,118
Save 17.9%GIA | 2.5ct | Radiant | H | SI2 | Excellent
From $19,961
Compare at $24,310
Save 17.6%GIA | 2.5ct | Radiant | D | VVS2 | Ideal
From $39,966
Compare at $48,488
GIA | 2.5ct | Radiant | D | SI2 | Very Good
From $22,880
Compare at $24,254
GIA | 2.5ct | Radiant | D | SI1 | Excellent
From $33,269
Compare at $33,950
Save 17.9%GIA | 2.5ct | Radiant | I | VS1 | Excellent
From $22,833
Compare at $27,828
Save 17.9%GIA | 2.5ct | Radiant | I | SI1 | Excellent
From $20,209
Compare at $24,614
GIA | 2.5ct | Radiant | D | SI1 | Excellent
From $30,929
Compare at $31,830
Save 24.7%GIA | 2.5ct | Radiant | E | VS2 | Very Good
From $25,430
Compare at $33,750
Save 15.6%GIA | 2.5ct | Radiant | E | VVS2 | Excellent
From $32,257
Compare at $38,206
Save 22.9%GIA | 2.5ct | Radiant | D | SI1 | Excellent
From $29,970
Compare at $38,864
Save 18%GIA | 2.5ct | Radiant | E | SI1 | Excellent
From $26,131
Compare at $31,866
GIA | 2.5ct | Radiant | I | SI1 | Excellent
From $17,638
Compare at $18,001
Save 25.8%GIA | 2.5ct | Radiant | D | SI1 | Excellent
From $25,177
Compare at $33,919
Save 16.6%GIA | 2.5ct | Radiant | G | SI1 | Ideal
From $22,457
Compare at $26,921
Save 12.5%GIA | 2.5ct | Radiant | J | SI2 | Excellent
From $15,020
Compare at $17,169
Save 14.7%GIA | 2.5ct | Radiant | F | SI1 | Ideal
From $20,847
Compare at $24,431
Save 13.2%GIA | 2.5ct | Radiant | F | VS2 | Excellent
From $31,892
Compare at $36,750
GIA | 2.5ct | Radiant | G | SI2 | Ideal
From $18,120
Compare at $19,002
Save 10.6%GIA | 2.5ct | Radiant | J | VS2 | Excellent
From $16,983
Compare at $18,987
Save 19%GIA | 2.5ct | Radiant | I | SI1 | Excellent
From $17,861
Compare at $22,063
Save 18%GIA | 2.5ct | Radiant | F | SI1 | Excellent
From $26,768
Compare at $32,648
GIA | 2.5ct | Radiant | D | SI2 | Excellent
From $24,184
Compare at $24,855
GIA | 2.5ct | Radiant | E | VS2 | Excellent
From $31,155
Compare at $36,170
Save 15.6%GIA | 2.5ct | Radiant | G | VVS1 | Excellent
From $34,040
Compare at $40,313
Save 17.9%GIA | 2.5ct | Radiant | I | VS1 | Excellent
From $22,833
Compare at $27,828
Save 19.5%GIA | 2.5ct | Radiant | J | SI2 | Excellent
From $12,129
Compare at $15,072
Save 22.2%GIA | 2.5ct | Radiant | K | SI1 | Excellent
From $10,209
Compare at $13,121
GIA | 2.5ct | Radiant | D | VS2 | Ideal
From $33,957
Compare at $34,960
GIA | 2.5ct | Radiant | I | SI2 | Excellent
From $19,500
Compare at $22,163
GIA | 2.5ct | Radiant | G | SI1 | Excellent
From $26,616
Compare at $27,112
Save 17.1%GIA | 2.5ct | Radiant | E | SI1 | Very Good
From $28,411
Compare at $34,272
GIA | 2.5ct | Radiant | G | SI2 | Excellent
From $12,620
Compare at $13,217
GIA | 2.5ct | Radiant | D | SI1 | Excellent
From $28,489
Compare at $28,490
Save 17.1%GIA | 2.5ct | Radiant | D | VS2 | Very Good
From $32,503
Compare at $39,226
Save 17.1%GIA | 2.5ct | Radiant | D | SI1 | Excellent
From $28,579
Compare at $34,475
Save 16.1%GIA | 2.5ct | Radiant | F | VS2 | Excellent
From $33,372
Compare at $39,798
Save 29%GIA | 2.5ct | Radiant | E | VS2 | Very Good
From $32,587
Compare at $45,903
Entry pricing in this category starts around $1,173.
What to Know When Shopping for 2.5 Carat Radiant Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $50,618 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $25,668 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Radiant cuts combine the elegance of emerald shapes with the brilliance of round cuts, offering good value per carat.
Frequently Asked Questions
We currently track 209 comparable stones in this segment. Prices start around $1,173 and go up to $51,791.
Based on the latest market data, the average asking price is about $25,862 with a median around $25,668.
The observed spread is roughly $50,618 across tracked listings, which is about 97.7% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $25,668, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 7 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $50,618 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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